Geology & Geophysics

Uncertainty – the most important result of basin modelling

I have long wanted to write about uncertainties in basin modelling. Despite their general acknowledgement, they are commonly underestimated due to various biases and psychological pressures. Explorationists sometimes live in…

The cream of the outcrop

This panorama shows an Upper Miocene succession, la Rambla de Lanujar, in the Betic Cordillera, featuring in one of our field trips to Tabernas, Almería, Spain. Apart from being a…

Peat: So hot right now

“The offshore wind sector is still very much a geotechnical exercise”, I was told recently by someone with knowledge on the matter. “But that model is due an update.” Despite…

Riedel shears as kinematic indicators

In the previous article in this series, we discussed that Riedel shears are commonly the first set of subsidiary faults we see prior to the breakthrough of a master fault.…

The rise of production geology

Before anything, let’s clear the water: Production geology is not a cross-over between the cinema industry and our good ol’ geology. Production geology refers to unravelling the geological intricacies in…

Using seismic velocity to derisk oil exploration

In a recent GEO EXPRO article, we developed a field-based approach to identify natural gas prospects directly from seismic surveys. The gas fields are straight up. If the p-wave velocities…

A geomechanics approach for natural fracture prediction

Natural fractures can provide the essential permeability in hydrocarbon and geothermal reservoirs. However, they exist in the sub-seismic domain and although they can be detected by well logs and cores,…